Root Race is a
term used by Helena Petrovna Blavatsky in The Secret Doctrine and does not
refer to races in the commonly understood sense butthe large time periods in her cosmology and
symbolizes stages in human evolution. They are effectively mass reincarnations
of the Human Race. The large time periods of the root races can be compared to
the geological time periods or to the Yugas in Hindu Mythology.

H P Blavatsky
postulates that there have been five root races with each root race divided
into seven subraces. There are two more Root Races to
come on our current Globe (Cosmic Era).
The first root race was according to her "ethereal", the second root race
lived in Hyperborea. The third root race lived in Lemuria and the fourth root race in Atlantis.